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13144252620 = 2235219070877
BaseRepresentation
bin11000011110111010…
…10110000011001100
31020221001020012212010
430033131112003030
5203404412040440
610012142541220
7643504206132
oct141735260314
936831205763
1013144252620
1156356515a4
122669b97810
13131623a895
148c9999752
1551de48580
hex30f7560cc

13144252620 has 24 divisors (see below), whose sum is σ = 36803907504. Its totient is φ = 3505134016.

The previous prime is 13144252601. The next prime is 13144252621. The reversal of 13144252620 is 2625244131.

13144252620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (13144252621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109535379 + ... + 109535498.

It is an arithmetic number, because the mean of its divisors is an integer number (1533496146).

Almost surely, 213144252620 is an apocalyptic number.

13144252620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13144252620 is an abundant number, since it is smaller than the sum of its proper divisors (23659654884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13144252620 is a wasteful number, since it uses less digits than its factorization.

13144252620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219070889 (or 219070887 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 13144252620 its reverse (2625244131), we get a palindrome (15769496751).

The spelling of 13144252620 in words is "thirteen billion, one hundred forty-four million, two hundred fifty-two thousand, six hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 219070877 438141754 657212631 876283508 1095354385 1314425262 2190708770 2628850524 3286063155 4381417540 6572126310 13144252620